1990 GMC P3500 Service and Repair Manual
This factory service and repair manual for the 1990 GMC P3500 covers three body configurations, the two-door delivery van, the bare chassis and the stripped motorhome chassis, and three trims, Base, Base Stripped and Value. Five engines are in scope: the turbocharged 3.9L inline-four diesel, the naturally aspirated 6.2L V8 diesel, and the 7.4L V8, 4.3L V6 and 5.7L V8 on gasoline, all overhead-valve. Procedures, specifications, torque values, wiring diagrams and diagnostics are arranged by system, so a motorhome chassis and a delivery van are looked up the same way.
Engines covered
- 3.9L inline-four (239 cu in) — OHV, turbocharged, diesel
- 7.4L V8 (454 cu in) — OHV, naturally aspirated, gasoline
- 6.2L V8 (379 cu in) — OHV, naturally aspirated, diesel
- 4.3L V6 (262 cu in) — OHV, naturally aspirated, gasoline
- 5.7L V8 (350 cu in) — OHV, naturally aspirated, gasoline
Body styles covered
- 2-door van delivery van
- Chassis
- Motorhome, stripped chassis
Trims covered
- Base
- Base Stripped
- Value
Known issues on the 1990 P3500. The 1990 P3500 has a clean federal record, with no recalls and no owner complaints logged with NHTSA. For a chassis that spent much of its life under coachbuilt bodies that is worth knowing, but it also means the manual is a reference rather than a fix list. It covers the five engines named above with procedures and specifications, gives torque values for the work those procedures involve, and provides wiring diagrams and diagnostics for the chassis electrical systems.
CERTAIN HONEYWELL FRAM RACING BRAND HP4 AND HP8 OIL FILTERS THAT WERE MANUFACTURED FROM MAY 25, 2006, THROUGH SEPTEMBER 14, 2007, AND SOLD FOR USE AS REPLACEMENT EQUIPMENT FOR VEHICLES LIST ABOVE. TH
THIS CONDITION MAY CAUSE INADEQUATE SEALING AND LOSS OF ENGINE OIL, POSSIBLY RESULTING IN A FIRE.
HONEYWELL WILL REPLACE THE AFFECTED OIL FILTERS FREE OF CHARGE. THE RECALL BEGAN DURING NOVEMBER 20
Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
